3638733 has 8 divisors (see below), whose sum is σ = 5544768. Its totient is φ = 2079264.

The previous prime is 3638699. The next prime is 3638753. The reversal of 3638733 is 3378363.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3638733 - 2⁸ = 3638477 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3638694 and 3638703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3638753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86616 + ... + 86657.

It is an arithmetic number, because the mean of its divisors is an integer number (693096).

Almost surely, 2^3638733 is an apocalyptic number.

It is an amenable number.

3638733 is a deficient number, since it is larger than the sum of its proper divisors (1906035).

3638733 is a wasteful number, since it uses less digits than its factorization.

3638733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173283.

The product of its digits is 27216, while the sum is 33.

The square root of 3638733 is about 1907.5463297126. The cubic root of 3638733 is about 153.8095836218.

It can be divided in two parts, 3638 and 733, that added together give a triangular number (4371 = T₉₃).

The spelling of 3638733 in words is "three million, six hundred thirty-eight thousand, seven hundred thirty-three".